Cricket

noun a series of Test matches or other games at international level. The word ‘rubber’ has been used to denote a set of games – e.g., in whist, backgammon, or bowls – for over 400 years, but its use in a cricket context is much more recent. In its earliest sense it denoted the deciding game in a set of three or five, and this may account for its derivation – meaning the game that eliminated, or ‘rubbed out’, one of the contestants.

Electronics

A natural or syntheticpolymer which upon vulcanization becomes elastic, tough, and resistant to cold, heat, abrasions, water, and many chemicals. Used, for instance, for insulation, as a protective layer, and as a filler material. 2. Rubber (1) which has been vulcanized.

Medical

noun a material which can be stretched and compressed, made from the thick white liquid called latex, from a tropical tree

Publishing

noun a piece of soft material used to remove pencil marks

Slang

noun a condom. The first version is international English, the second British. Johnnie, johnny and ‘johnnie bag’ are synonyms.